// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
// This source file is part of the Cangjie project, licensed under Apache-2.0
// with Runtime Library Exception.
//
// See https://cangjie-lang.cn/pages/LICENSE for license information.

public abstract class C1 implements I2 {
    public static I1 foo() {
        return null;
    }

    public C1 foo(int i) {
        return null;
    }
}